CVE-2025-59531

HighCVSS 7.5/10Last modified Oct 12, 2026

Description

Argo CD is a declarative, GitOps continuous delivery tool for Kubernetes. Versions 1.2.0 through 1.8.7, 2.0.0-rc1 through 2.14.19, 3.0.0-rc1 through 3.2.0-rc1, 3.1.7 and 3.0.18 are vulnerable to malicious API requests which can crash the API server and cause denial of service to legitimate clients. Without a configured webhook.bitbucketserver.secret, Argo CD's /api/webhook endpoint crashes when receiving a malformed Bitbucket Server payload (non-array repository.links.clone field). A single unauthenticated request triggers CrashLoopBackOff, and targeting all replicas causes complete API outage. This issue is fixed in versions 2.14.20, 3.2.0-rc2, 3.1.8 and 3.0.19.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-703

Affected software

Vendor	Product	Versions
argoproj	argo-cd	>= 1.2.0, <= 1.8.7; >= 2.0.0-rc1, < 2.14.20; >= 3.2.0-rc1, < 3.2.0-rc2; >= 3.1.0-rc1, < 3.1.8; >= 3.0.0-rc1, < 3.0.19

References

https://github.com/argoproj/argo-cd/commit/5c466a4e39802e059e75c0008ae7b7b8e842538fPatch
https://github.com/argoproj/argo-cd/security/advisories/GHSA-f9gq-prrc-hrhcExploit, Mitigation, Vendor Advisory
https://github.com/argoproj/argo-cd/security/advisories/GHSA-f9gq-prrc-hrhcExploit, Mitigation, Vendor Advisory

Timeline

Published: Oct 1, 2025
Last modified: Oct 12, 2026
NVD status: Analyzed

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